Sodium Hydroxide → HCID 59351279, compound

Participants

Reaction Steps

To the solution of ethyl 3-(4-(1H-benzo[d]imidazole-2 carbonyl)phenoxy)pyrazine-2-carboxylate (30 g, 77 mmol) in methanol (250 mL) was added aqueous NaOH solution (4.62 g, 115 mmol) in 50 mL of water. The reaction mixture was heated to reflux for 1 h. The reaction mixture was concentrated then diluted with water. The aqueous layer was washed with ethyl acetate and then acidified by addition of 2N HCl to pH 6. The precipitate was collected by filtration, dried to give the title compound as a light brown solid. MS [M+H]=351.2.

Provenance & Evidence